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Starting with skimmer v7r4, the skimmer binaries are placed under the bin directory. Previously, a new directory named linux would be generated and the binaries placed there - without a means to differentiate between OS or -gl* versions of ROOT. The web based skimmer currently points to the linux directory, so if newer versions of the skimmer are to be used by the web-front end, we create symlinks to a directory like linux/5.20/00.